Paola Persico | National centre for research (original) (raw)
Papers by Paola Persico
International Journal of Polymer Science
Two kinds of environmental friendly composites were prepared based on sustainable matrices, respe... more Two kinds of environmental friendly composites were prepared based on sustainable matrices, respectively, defatted cross-linked soy flour and thermoplastic polyhydroxybutyrate cohydroxyvalerate, reinforced by natural fibers fromCaroàandKenafplants. The obtained composites were compared in terms of moisture tolerance, thermal and mechanical properties, and thermoregulation ability. It was found that this ecofriendly systems have suitable properties for indoor applications in housing and transportation.
Polymer Composites, Dec 1, 2013
ABSTRACT Carbon fibers reinforced epoxy resins are used in a wide range of applications, such as ... more ABSTRACT Carbon fibers reinforced epoxy resins are used in a wide range of applications, such as automotive and aerospace industry. Because of their thermosetting nature, recycling at the end of the life cycle is a difficult issue. However, lack of recyclability poses environmental concerns to the use of these composite materials. In this article, a sustainable, cost-effective technological approach aiming at recycling postconsumer carbon fibers reinforced thermosets (CFRT) is proposed. Composites containing 50 and 70 wt% of CFRT particles were prepared by incorporating the filler fraction into a fluidified postconsumer expanded polystyrene matrix. A cold mixing approach consisting in the use of a low boiling solvent as a binder to guarantee the dispersion homogeneity on micro- and macroscopic level was set up. For comparison, analog composites were also prepared through melt mixing process. Morphological, mechanical, and thermal analyses allowed to prove the effectiveness of the cold mixing approach and to evaluate the influence of particle size on the performance of new recycled composites. Thermogravimetric analysis and thermal conductivity tests of samples highlighted further peculiarities of the cold mixing process. The approach proposed is an effective recycling technology for CFRT and could be extended to other postconsumer materials. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers
Polymer International, 2015
Industrial & Engineering Chemistry Research, 2015
Journal of Materials Research, 2015
Infrared Thermography: Some Applications of Microencapsulated PCMs as Investigative Tool for Heat... more Infrared Thermography: Some Applications of Microencapsulated PCMs as Investigative Tool for Heat Transport Evaluation. [AIP Conference Proceedings 1255, 303 (2010)].Paola Persico, Adolfo Izzo Renzi, Cosimo Carfagna. Abstract. ...
Polymer Composites, 2013
ABSTRACT Carbon fibers reinforced epoxy resins are used in a wide range of applications, such as ... more ABSTRACT Carbon fibers reinforced epoxy resins are used in a wide range of applications, such as automotive and aerospace industry. Because of their thermosetting nature, recycling at the end of the life cycle is a difficult issue. However, lack of recyclability poses environmental concerns to the use of these composite materials. In this article, a sustainable, cost-effective technological approach aiming at recycling postconsumer carbon fibers reinforced thermosets (CFRT) is proposed. Composites containing 50 and 70 wt% of CFRT particles were prepared by incorporating the filler fraction into a fluidified postconsumer expanded polystyrene matrix. A cold mixing approach consisting in the use of a low boiling solvent as a binder to guarantee the dispersion homogeneity on micro- and macroscopic level was set up. For comparison, analog composites were also prepared through melt mixing process. Morphological, mechanical, and thermal analyses allowed to prove the effectiveness of the cold mixing approach and to evaluate the influence of particle size on the performance of new recycled composites. Thermogravimetric analysis and thermal conductivity tests of samples highlighted further peculiarities of the cold mixing process. The approach proposed is an effective recycling technology for CFRT and could be extended to other postconsumer materials. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers
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](Journal of Polymer Science Part A: Polymer Chemistry, 2003
Journal of Microencapsulation, 2005
Jojoba oil containing polyamide microcapsules having diameter of approximately 5 microm were prep... more Jojoba oil containing polyamide microcapsules having diameter of approximately 5 microm were prepared by inter-facial polycondensation by direct method (oil-in-water). Qualitative effects of both the formulation and the process parameters on microcapsules characteristics were investigated by SEM observations. Morphological analysis showed the dependence of the external membrane compactness on the chemical nature of the water-soluble polyamine and the oil-soluble acid polychloride: 1,6-hexamethylenediamine (HMDA) and terephthaloyl dichloride (TDC) were found to favour the production of smooth and dense surfaces. The use of ultrasonic irradiations during the dispersion step to get a further reduction of microcapsules size was also evaluated.
International Journal of Biological Macromolecules, 2012
Journal of Polymer Science Part A-polymer Chemistry, 2003
aaqtic.org.ar
Page 1. 1 Phase Change Materials (PCMs) technology for leather wearing industry Adolfo Izzo Renzi... more Page 1. 1 Phase Change Materials (PCMs) technology for leather wearing industry Adolfo Izzo Renzi 1,∗ , Paola Persico 1,2, Cosimo Carfagna 1,2 1 University of Naples Federico II, Department of Materials and Production Engineering, P.le Tecchio 80, 80125 Naples, Italy ...
1.3.1 Antibacterial fibers 1.3.2 Antimicrobial finishing methodologies 1.3.3 Mechanism of antimic... more 1.3.1 Antibacterial fibers 1.3.2 Antimicrobial finishing methodologies 1.3.3 Mechanism of antimicrobial activity 1.3.4 Antimicrobial substances and their effect 1.3.5 Commercial antimicrobial agents and fibers 1.3.6 Benefits of antimicrobial textiles ... 2.2.1 Physical and chemical ...
Applied Thermal Engineering, 2010
Journal of Microencapsulation, 2005
Jojoba oil containing polyamide microcapsules having diameter of approximately 5 microm were prep... more Jojoba oil containing polyamide microcapsules having diameter of approximately 5 microm were prepared by inter-facial polycondensation by direct method (oil-in-water). Qualitative effects of both the formulation and the process parameters on microcapsules characteristics were investigated by SEM observations. Morphological analysis showed the dependence of the external membrane compactness on the chemical nature of the water-soluble polyamine and the oil-soluble acid polychloride: 1,6-hexamethylenediamine (HMDA) and terephthaloyl dichloride (TDC) were found to favour the production of smooth and dense surfaces. The use of ultrasonic irradiations during the dispersion step to get a further reduction of microcapsules size was also evaluated.
Journal of Vinyl & Additive Technology, 2009
Preliminary results are presented concerning the use of less-toxic plasticizers such as dioctyl a... more Preliminary results are presented concerning the use of less-toxic plasticizers such as dioctyl adipate (DOA) and acetyl tributyl citrate (ATBC) in plastisol formulations for rotational molding technology. The DOA and ATBC plasticizers have been studied by comparing the effects of their content, molecular architecture, and polarity on the rheological behavior of liquid plastic systems and on the mechanical properties of the ultimate products prepared with PVCs having different particle sizes and molecular-weight distributions. Rheological tests have confirmed the differences in solvent power of the diethylhexyl phthalate (DOP), DOA, and ATBC plasticizers. The glass transition temperatures measured on rotomolded samples have shown that the use of ATBC leads to a more nearly rigid system as a consequence of the branched structure and polarity of this plasticizer when compared with DOA. Mechanical tests carried out on final products after natural and forced environmental aging revealed a slight decrease in their performance. J. VINYL ADDIT. TECHNOL., 2009. © 2009 Society of Plastics Engineers
Polymer Degradation and Stability, 2011
Linear hyperbranched block copolymers based on PBA polyesters (HPBA) has been synthesized by a on... more Linear hyperbranched block copolymers based on PBA polyesters (HPBA) has been synthesized by a one-pot synthesis procedure and well characterized by MALDI-TOF mass spectrometry, H-NMR and SEC tools, to obtain reliable information on its chemical composition and molar mass distribution.
International Journal of Polymer Science
Two kinds of environmental friendly composites were prepared based on sustainable matrices, respe... more Two kinds of environmental friendly composites were prepared based on sustainable matrices, respectively, defatted cross-linked soy flour and thermoplastic polyhydroxybutyrate cohydroxyvalerate, reinforced by natural fibers fromCaroàandKenafplants. The obtained composites were compared in terms of moisture tolerance, thermal and mechanical properties, and thermoregulation ability. It was found that this ecofriendly systems have suitable properties for indoor applications in housing and transportation.
Polymer Composites, Dec 1, 2013
ABSTRACT Carbon fibers reinforced epoxy resins are used in a wide range of applications, such as ... more ABSTRACT Carbon fibers reinforced epoxy resins are used in a wide range of applications, such as automotive and aerospace industry. Because of their thermosetting nature, recycling at the end of the life cycle is a difficult issue. However, lack of recyclability poses environmental concerns to the use of these composite materials. In this article, a sustainable, cost-effective technological approach aiming at recycling postconsumer carbon fibers reinforced thermosets (CFRT) is proposed. Composites containing 50 and 70 wt% of CFRT particles were prepared by incorporating the filler fraction into a fluidified postconsumer expanded polystyrene matrix. A cold mixing approach consisting in the use of a low boiling solvent as a binder to guarantee the dispersion homogeneity on micro- and macroscopic level was set up. For comparison, analog composites were also prepared through melt mixing process. Morphological, mechanical, and thermal analyses allowed to prove the effectiveness of the cold mixing approach and to evaluate the influence of particle size on the performance of new recycled composites. Thermogravimetric analysis and thermal conductivity tests of samples highlighted further peculiarities of the cold mixing process. The approach proposed is an effective recycling technology for CFRT and could be extended to other postconsumer materials. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers
Polymer International, 2015
Industrial & Engineering Chemistry Research, 2015
Journal of Materials Research, 2015
Infrared Thermography: Some Applications of Microencapsulated PCMs as Investigative Tool for Heat... more Infrared Thermography: Some Applications of Microencapsulated PCMs as Investigative Tool for Heat Transport Evaluation. [AIP Conference Proceedings 1255, 303 (2010)].Paola Persico, Adolfo Izzo Renzi, Cosimo Carfagna. Abstract. ...
Polymer Composites, 2013
ABSTRACT Carbon fibers reinforced epoxy resins are used in a wide range of applications, such as ... more ABSTRACT Carbon fibers reinforced epoxy resins are used in a wide range of applications, such as automotive and aerospace industry. Because of their thermosetting nature, recycling at the end of the life cycle is a difficult issue. However, lack of recyclability poses environmental concerns to the use of these composite materials. In this article, a sustainable, cost-effective technological approach aiming at recycling postconsumer carbon fibers reinforced thermosets (CFRT) is proposed. Composites containing 50 and 70 wt% of CFRT particles were prepared by incorporating the filler fraction into a fluidified postconsumer expanded polystyrene matrix. A cold mixing approach consisting in the use of a low boiling solvent as a binder to guarantee the dispersion homogeneity on micro- and macroscopic level was set up. For comparison, analog composites were also prepared through melt mixing process. Morphological, mechanical, and thermal analyses allowed to prove the effectiveness of the cold mixing approach and to evaluate the influence of particle size on the performance of new recycled composites. Thermogravimetric analysis and thermal conductivity tests of samples highlighted further peculiarities of the cold mixing process. The approach proposed is an effective recycling technology for CFRT and could be extended to other postconsumer materials. POLYM. COMPOS., 2013. © 2013 Society of Plastics Engineers
Journal of Polymer Science Part A: Polymer Chemistry, 2003
Journal of Microencapsulation, 2005
Jojoba oil containing polyamide microcapsules having diameter of approximately 5 microm were prep... more Jojoba oil containing polyamide microcapsules having diameter of approximately 5 microm were prepared by inter-facial polycondensation by direct method (oil-in-water). Qualitative effects of both the formulation and the process parameters on microcapsules characteristics were investigated by SEM observations. Morphological analysis showed the dependence of the external membrane compactness on the chemical nature of the water-soluble polyamine and the oil-soluble acid polychloride: 1,6-hexamethylenediamine (HMDA) and terephthaloyl dichloride (TDC) were found to favour the production of smooth and dense surfaces. The use of ultrasonic irradiations during the dispersion step to get a further reduction of microcapsules size was also evaluated.
International Journal of Biological Macromolecules, 2012
Journal of Polymer Science Part A-polymer Chemistry, 2003
aaqtic.org.ar
Page 1. 1 Phase Change Materials (PCMs) technology for leather wearing industry Adolfo Izzo Renzi... more Page 1. 1 Phase Change Materials (PCMs) technology for leather wearing industry Adolfo Izzo Renzi 1,∗ , Paola Persico 1,2, Cosimo Carfagna 1,2 1 University of Naples Federico II, Department of Materials and Production Engineering, P.le Tecchio 80, 80125 Naples, Italy ...
1.3.1 Antibacterial fibers 1.3.2 Antimicrobial finishing methodologies 1.3.3 Mechanism of antimic... more 1.3.1 Antibacterial fibers 1.3.2 Antimicrobial finishing methodologies 1.3.3 Mechanism of antimicrobial activity 1.3.4 Antimicrobial substances and their effect 1.3.5 Commercial antimicrobial agents and fibers 1.3.6 Benefits of antimicrobial textiles ... 2.2.1 Physical and chemical ...
Applied Thermal Engineering, 2010
Journal of Microencapsulation, 2005
Jojoba oil containing polyamide microcapsules having diameter of approximately 5 microm were prep... more Jojoba oil containing polyamide microcapsules having diameter of approximately 5 microm were prepared by inter-facial polycondensation by direct method (oil-in-water). Qualitative effects of both the formulation and the process parameters on microcapsules characteristics were investigated by SEM observations. Morphological analysis showed the dependence of the external membrane compactness on the chemical nature of the water-soluble polyamine and the oil-soluble acid polychloride: 1,6-hexamethylenediamine (HMDA) and terephthaloyl dichloride (TDC) were found to favour the production of smooth and dense surfaces. The use of ultrasonic irradiations during the dispersion step to get a further reduction of microcapsules size was also evaluated.
Journal of Vinyl & Additive Technology, 2009
Preliminary results are presented concerning the use of less-toxic plasticizers such as dioctyl a... more Preliminary results are presented concerning the use of less-toxic plasticizers such as dioctyl adipate (DOA) and acetyl tributyl citrate (ATBC) in plastisol formulations for rotational molding technology. The DOA and ATBC plasticizers have been studied by comparing the effects of their content, molecular architecture, and polarity on the rheological behavior of liquid plastic systems and on the mechanical properties of the ultimate products prepared with PVCs having different particle sizes and molecular-weight distributions. Rheological tests have confirmed the differences in solvent power of the diethylhexyl phthalate (DOP), DOA, and ATBC plasticizers. The glass transition temperatures measured on rotomolded samples have shown that the use of ATBC leads to a more nearly rigid system as a consequence of the branched structure and polarity of this plasticizer when compared with DOA. Mechanical tests carried out on final products after natural and forced environmental aging revealed a slight decrease in their performance. J. VINYL ADDIT. TECHNOL., 2009. © 2009 Society of Plastics Engineers
Polymer Degradation and Stability, 2011
Linear hyperbranched block copolymers based on PBA polyesters (HPBA) has been synthesized by a on... more Linear hyperbranched block copolymers based on PBA polyesters (HPBA) has been synthesized by a one-pot synthesis procedure and well characterized by MALDI-TOF mass spectrometry, H-NMR and SEC tools, to obtain reliable information on its chemical composition and molar mass distribution.